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3 years ago

(8+9) - (8+7) x (7 x 87)

Mathematics

2 answers:

rosijanka [135]3 years ago

7 0

i think its -9118 sorry if im wrong

Stells [14]3 years ago

4 0

Answer:

-1,918

Step-by-step explanation:

PEMDAS says to do the parenthesis first. So,

8+9=17

8+7=15

7x87=609

which gives us,

17-15 x 609

Next is multiplication

15 x 609= 9,135

which gives us,

17-1,935= -1918

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3 years ago

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Let f(x)=−12(x+2)2+5 . What is the average rate of change for the quadratic function from x=−3 to x = 1?

aev [14]

Answer:

Average rate of change = -6

Step-by-step explanation:

The average rate of change over the interval (a,b) is given by;

[ f(b) - f(a)] / (b-a)........................where interval is (a,b)

(a,b) interval =(-3,1)

Where;

f(x)= -12 (x+2)² +5

$f(a)=f(-3)=-12(-3+2)^2+5\\f(a)=f(-3)=-12(-1)^2+5\\f(a)=f(-3)=-12(1)+5\\=-12+5=-7\\\\\\f(b)=f(1)=-12(1+2)+5\\f(b)=f(1)=-12(3)+5\\=-36+5=-31\\\\f(b)-f(a)=-31--7=-24\\\\b-a=1--3=4\\\\f(b)-f(a)/b-a=\frac{-24}{4} =-6$

5 0

3 years ago

Desire <br> Help me with this quistion

aleksandrvk [35]

Answer:

The value of n is 11 feet.

Step-by-step explanation:

Given that the area of rectangle from is A = length×width so we have to substitute the variables into the formula in order to find n :

$area = length \times width$

Let area = 33,

Let length = n,

Let width = 3,

$33 = n \times 3$

$3n = 33$

$n = 33 \div 3$

$n = 11 \: feet$

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3 years ago

Write a story or real life situation that situation that could be solved with 24 /6

uranmaximum [27]

24/6 is 6 so answer is 6.

4 0

3 years ago

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How do you solve this? <br>Y x 49/36=7/12

Triss [41]

Divide both sides by 49/36 to get y by itself:

$\frac{7}{12} \div \frac{49}{36}$

$\frac{7}{12} \times \frac{36}{49} = \frac{254}{588}$

Simplify this fraction:

$\frac{254}{588} \div \frac{2}{2} = \frac{127}{294}$

Now you have your answer:

$y = \frac{127}{294}$

5 0

3 years ago